All-in-One Tools Collection
A broad collection of online tools for development, AI, design, and productivity tasks.
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NSFW Image Content Detector
AI-powered image content safety detector using NSFWJS to classify potentially inappropriate content with fallback analysis, supporting GIF/Animated WebP/APNG and JPEG/PNG/WEBP.
Effect Size Calculator
Calculate Cohen d, Hedges g, Cohen h for proportions, or correlation r effect sizes from summary statistics
One Sample t Test Calculator
Run a one-sample t test from raw data or summary statistics, including p-value and confidence interval
Statistical Power Calculator
Estimate statistical power for one-sample mean or proportion tests using sample size, alpha, and expected effect
F Distribution Calculator
Calculate F distribution density, cumulative probability, and right-tail probability from numerator and denominator degrees of freedom
Margin of Error Calculator
Calculate the margin of error for a mean or proportion from sample size, confidence level, and variability
P Value Calculator
Calculate one-tailed or two-tailed p-values for Z, t, chi-square, and F test statistics
Chi-Square Distribution Calculator
Calculate chi-square distribution PDF, CDF, and right-tail probability from a statistic and degrees of freedom
Exponential Distribution Calculator
Calculate PDF, CDF, survival probability, and interval probability for an exponential distribution
Hypergeometric Distribution Calculator
Calculate exact and cumulative probabilities for sampling without replacement
T Distribution Calculator
Calculate Student t distribution PDF, CDF, tail probability, two-tail probability, and central area
Uniform Distribution Calculator
Calculate PDF, CDF, survival probability, and interval probability for a continuous uniform distribution